Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual posição Adam Rachel joga?
 ###Tabelas: CREATE TABLE origins_in_corporate_strategy (origins_in_corporate_strategy_id AUTO_INCREMENT PRIMARY KEY, Component VARCHAR, Integrated VARCHAR, Allied-Related VARCHAR, Allied-Unrelated VARCHAR, Holding VARCHAR) CREATE TABLE 2008_ladder_and_finals (2008_ladder_and_finals_id AUTO_INCREMENT PRIMARY KEY, Benalla DFL VARCHAR, Wins INT, Losses INT, Draws INT, Byes INT, Against INT) CREATE TABLE 1990s (1990s_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Position VARCHAR, First-Team Debut VARCHAR, First-Team Appearances INT, First-Team Goals INT, Current Club VARCHAR) CREATE TABLE force_composition (force_composition_id AUTO_INCREMENT PRIMARY KEY, NATO member VARCHAR, Aircraft carriers VARCHAR, Battleships VARCHAR, Cruisers VARCHAR, Escorts VARCHAR, Submarines VARCHAR, Torpedo boat squadrons VARCHAR, s Motor ship / s Naval trawler VARCHAR, Grand Total INT) CREATE TABLE runners_and_betting (runners_and_betting_id AUTO_INCREMENT PRIMARY KEY, Starting price VARCHAR, Number INT, Name VARCHAR, Age INT, Weight (st, lb) VARCHAR, Jockey VARCHAR, Trainer VARCHAR, Owner VARCHAR, Colours VARCHAR)  
SELECT Position FROM 1990s WHERE Player = adam rachel